Enabling the setting will cause Windows NT to automatically powerdown your computer once it has finished the shutdown process.
Note: This feature must be supported by the computer’s BIOS.
Key: [HKEY_LOCAL_MACHINE\SOFTWARE\Microsoft\Windows NT\CurrentVersion\Winlogon]
Value Name: PowerdownAfterShutdown
Data Type: REG_SZ
Data: (0 = disabled, 1 = enabled)